finance.proration
Split an amount into the part used and the part unused over a billing period, losing nothing.
prorate in RustTagged billing
9 capabilities
finance.credit-note.calculate
Credit note against an original invoice, by units or by amount, with VAT at the original tax point's rates.
calculate_credit_note in Rust
finance.invoice.calculate
Calculate a complete invoice: line nets, VAT per line, totals and a VAT summary grouped by rate.
calculate_invoice in Rust
subscriptions.invoice
A subscription renewal invoice: plan, add-ons and usage, coupon discounts by billing period, and VAT.
renewal_invoice in Rust
subscriptions.trial-end
When a free trial ends and the first payment is due, from the trial's start date and length in days.
trial_end in Rust
time.round-to-increment
Round a duration in minutes to a billing increment such as 6 or 15 minutes, up, down or to nearest.
round_to_increment in Rust
dates.month-boundaries
The first day, last day and length of the calendar month containing a date.
month_boundaries in Rust
finance.invoice.line-total
Net total for one invoice line: unit price by quantity, less a discount.
line_total in Rust
subscriptions.usage-tiered
Price metered usage against tiers, graduated or volume, with an optional flat fee per tier.
price_usage in Rust